Regular triangular pyramid has 6 cm long base edge and slant height k=9 cm. Find the lateral area of the pyramid.
Answers
Answer:
81 cm²
Step-by-step explanation:
Since, the lateral face of a triangular pyramid is a triangle,
Given,
The base edge or the base of one lateral face of pyramid, a = 6 cm,
And, the slant height or the height of the face, k = 9 cm,
Thus, the area of one lateral face of the pyramid,
We know that, a Regular triangular pyramid has 3 lateral faces,
Hence, the total lateral area of the pyramid,
Answer:
hiiii your answer is 81!!
Step-by-step explanation:
Related Questions
The average of a set of 5 numbers is 44. If the number 50 is added to the set, what is the new average?
PLEASEEEEE HELPPPPPpppppp
Admission to the football playoffs was $9 per person. If 612 people paid to attend the game, estimate how much money should be collected. Explain in words how you would estimate the answer
1) Which of the following shows the correct steps to find the value of 27 1/3?A) 27 1/3=(9^3)1/3=(9)^3(1/3)=9B) 27 1/3=(3^9)^1/3=(3)^9(1/3)=3C) 27 1/3=(3^4)1/2=(3)^4(1/2)=9D) 27 1/3=(3^3)^1/3=(3)^3(1/3)=3
Answers
100 centimeters in 1 meter
1 meter=100 cm
the conversion factor is
1m/100cm=1
to convert from cm to m, you multiply it by the conversion factor
180 cm times 1m/100cm= 180m/100=1.8m
the answer is 1.8 cm
basically divide by 100
Answers
x + 282
—
6
Answers
So the 34.55 were deduced from this number, and the remaining amount was:
907.10-34.55=872.65
After this, further 28% were deduced, which means that 100-28=72% were left.
And this is:72%*872.55= 628.236 (which we round to 628.24!)
Answer: the answer would be 628.24!
Step-by-step explanation:
took the test
Answers
Answer:
First you divide 12 by 3 to get 4 then you divide 4 by 4 to get 1. so M=1
Answer:
1
Step-by-step explanation:
Because u divide it
a. Write and solve an equation to find the number of square yards of carpeting for which the total cost charged by the two companies will be the same.
b. Mr. Shu wants to hire one of the two carpet companies to install carpeting in his basement. Is he more likely to hire Country Carpets or City Carpets? Explain your reasoning.
Answers
22x + 100 = 25x + 70
Now lets solve step-by-step.
Apply the inverse operation 22x + 100 = 25x + 70
-22x -22x
25x - 22x = 3x
3x + 70 = 100
-70 - 70 We subtract 70 from both sides because (inverse operation)
3x = 30
3x/3 = 30/3
x = 30/3
x= 10
B) We need to find which one is the most cheap.
Lets pick an integer to replace x.
22x + 100 = 25x + 70
Lets choose '2'
22(2) + 100 = 25(2) + 70
44 + 100
50 + 70
144
120
The first one : Country Carpets charges $144 , while at the same rate, City carpets charges 120.
So, obviously, City Carpets is cheaper than that other one, so he would most likely choose that one.
Let x be the number of square yards of carpeting for which the total cost charged by the two companies will be the same.
We have an expression for the total cost of Country Carpets:
($22/ 1 yd^2)* (x yd^2) + $100
= $22*x+ $100
or 22x+ 100
We also have another expression for the total cost of City Carpets:
($25/ 1 yd^2)* (x yd^2)+ $70
= $25*x+ $70
or 25x+ 70
Now set the two expressions to be equal:
22x+ 100= 25x+ 70
⇒ 100- 70= 25x -22x
⇒ 30= 3x
⇒ 30/3= x
⇒ 10= x
The final answer for a is 10 square yards of carpeting~
b.
Let's assume that Mr. Shu wants to install carpeting for 1 square yard.
Country Carpets: $22*1+ $100= $122
City Carpets: $25*1+ $70= $95
Therefore, Mr. Shu will be likely to choose City Carpets if he wants to install carpeting for 1 square yard.
Now let's try x=11 (square yard):
Country Carpets= $22*11+ $100= $342
City Carpets= $25*11+ $70= $345
Therefore, Mr. Shu will be likely to choose Country Carpets if he wants to install carpeting for 11 square yard.
If you paid really close attention, you would notice that the price of City Carpets will be cheaper than the other when x is >0 and <10. At x=10, the price is equal. When x is >10, the price of Country Carpets will be cheaper than the other one.
So it depends:
If x were >0 and <10, Mr. Shu would be likely to choose City Carpets.
If x were 10, Mr. Shu could choose either Country Carpets or City Carpets.
If x were > 10, Mr. Shu would be likely to choose Country Carpets.
Hope this helps~
Answers
The decimalform is 3.312.
What is an expression?
An expression contains one or more terms with addition, subtraction, multiplication, and division.
Example:
22 + 3x + 4y = 7 is an expression.
23 + 4 is an expression.
2 - 6 + 8 is an expression.
We have,
=
=
This can be written as,
16 ) 53 (3.312
48
50
48
20
16
40
32
8
= 3.312
Thus,
The decimalform is 3.3125.
Learn more about expressions here:
#SPJ2